Assistants for the textile and related industries and their manufacture



Patented May 7, 1940 UNITED [STATES PATENTS oFFrcE' I ASSISTANT S FOR THE TEXTILE AND RE- LATED-INDUSTRIES AND THEIR MANU- FACTURE 7 Kurt Engel, St. Louis, France, and Kurt Pfaehler, Basel, Switzerland, assignors to thefirm J. R.

Geigy A. G., Basel, Switzerland -No Drawing. Application May 18, 1938, Serial No. 208,718. In Switzerland May 29, 1937 '1 Claims. (01, 260511) This invention relates to a'process for the As initial materials for the sulphonation there. come into consideration desoxybenzoins substituted in the ms-position by aliphatic or alicyclic groups with more than 5'C-atoms. These, in part new compounds, are obtained easily by known.

processes (see for example Ber. d. Deutschen Chem. Gesellschaft vol. 21, page 1299 and vol. 25, page 2239). The sulphonated bodies obtained from these substituted desoxybenzoins constitute in the form of their soluble metal salts, valuable wetting, dispersing and emulsifying agents, their softening action being particularly interesting.

Example 1 Into 10 parts of sulphuric acid monohydrate there are introduced whilst stirring at 10 0., 20 parts of ms-octodecyl-p-methyl desoxybenzoin,

thereupon there are slowly allowed to drop in 40 parts of oleum (26%) at -5" C. After stirring for 4 hours below 10 C. a sample inserted in water is found to be completely soluble. As soon as this is the case the reaction mass is poured on ice, the separated fr'ee sulphonic acid is removed; it is neutralised by the addition of soda lye. By evaporation the soda salt is obtained as a bright powder, which is very easily soluble in water, and of which the solution imparts excellent softness to cellulose regenerates and native cellulose.

Example 2 Into 40 parts of sulphuric acid monohydrate there are introduced whilst stirring at 10 C., 20 parts of ms-hexadecyl-desoxy-benzoin, thereupon at C. 40 parts of oleum (66%) are allowed to drop in slowly and stirring takes place for 2 hours. Then the mixture is poured on to ice, neutralised and evaporated. There is obtained a white powder which forms a clear solution in water and constitutes an excellent softening agent for cellulose fibres.

When in this example hexadecyldesoxybenzoin is replaced by dodecyldesoxybenzoin or Loryldesoxybenzoin- (LoryI -meaning the radicalof technical dodecylalcohol, 'containinga1s'o a'number of homologues of dodecyl alcohol) there are obtained products with excellent capillary properties.

The possibility of variation is very considerable as the substituents can be varied within a wide range in the aromatic radicals, as also those on,

the meso-C-atom, whereby diverse capillary effects can be obtained. i l: q

Emmple'3 20 parts of ms-octodecyl-benzyl-diphenylke tone of the formula.

are introduced whilst stirringat 0., .into

partsof sulphuric acid monohydrate, 20 parts of fuming sulphuric acid (26% S03) added slowly at 0 to 5 C. and 20 parts of sulphuric acid (66% S03) at -5 to 0? C. After stirring for 6 hours below 10 C. a sample proves to be completely soluble in water. As soon as this is the case, the reaction mass is poured'on toice, the aqueous solution is neutralised with sodium hydroxide and evaporated. The sodium salt is obtained in the form of a bright powder.

Similar products are obtained by sulphonating ms-hexadecyl-benzy1-diphenylketone (made from benzyl-diphenylketone and cetylbromide) or by vsulph onating m-phenvl-u-naphtoylnonadecan of the formula Genoa-010111 made from naphthyl-benzyl-ketone and octadecylbromide.

Other compounds capable of being sulphonated according to the above described processes are Q5H5.CH.CO.C5H5

OHaCcHn the reaction product of desoxybenzoin with a halogenide of technical naphthenic alcohol and so on.

What we claim is 1. A process for the manufacture of assistantsior the textile and related industries which comiii) prises sulphonating' compounds of the following general formula X ArE'-COA:

wherein Ar means an aromatic radicalselected from thegroupconsisting of phenyl and diphenyl radicals and X means a substituent with more than 5 carbon-atoms selected from the group consisting of alkyl and cycloalkyl radicals, neutralizing the obtained sulphonic acid and evaporating. I

2. A process for the manufacture of assistants for the textile and related industries which comprises sulphonating compounds of the following general formula wherein X means an alkyl substituent with more than carbon atoms and Y a substituent selected from the group of H; alkyl and phenyl, neutralizing the obtained sulphonic acid and evaporating.

3. A process for the manufacture of assistants for the textile and related industries which comprises sulphonating a compound of the following formula I CraHar neutralizing the obtained sulphonic acid and evaporating. 4. A process for the manufacture of assistants for the textile and related industries which comprises sulphonatinga compound of the following formula neutralizing the obtained sulphonic acid and evaporating.

5. A process for the manufacture of assistants for the textile and related industries which comprises sulphonating a compound of the following formula .neutralizing the obtained sulphonic acid and evaporating.

6. Soluble salts of desoxybenzoin-sulphonic acids, corresponding in the free state with the following formula wherein X means an alkyl substituent with more than 10 carbon atoms and Y a substituent selected from the group of H, alkyl and phenyl; being, when neutralized and evaporated to dryness bright powders whose solutions show valuable capillary activity, exerting a very pronounced softening action on cellulosic fibres.

V KURT EN GEL KURT PFAEHLER. 

